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BUSINESS SEGMENT INFORMATION | 3 Months Ended
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Mar. 31, 2019
Segment Reporting [Abstract] |
BUSINESS SEGMENT INFORMATION | BUSINESS SEGMENT INFORMATION The Company's DIS business is the only reportable segment based on the manner in which the Chief Executive Officer, who is the Company's chief operating decision maker ("CODM"), assesses performance and allocates resources across the organization. The DIS business provides diagnostic information services to a broad range of customers, including patients, clinicians, hospitals, IDNs, health plans, employers and ACOs. The Company is the world's leading provider of diagnostic information services, which includes providing information and insights based on the industry-leading menu of routine, non-routine and advanced clinical testing and anatomic pathology testing, and other diagnostic information services. The DIS business accounted for greater than 95% of net revenues in 2019 and 2018. All other operating segments include the Company's DS businesses, which consist of its risk assessment services and healthcare information technology businesses. The Company's DS businesses are the leading provider of risk assessment services for the life insurance industry and offer healthcare organizations and clinicians robust information technology solutions. As of March 31, 2019, substantially all of the Company’s services were provided within the United States, and substantially all of the Company’s assets were located within the United States. The following table is a summary of segment information for the three months ended March 31, 2019 and 2018. Segment asset information is not presented since it is not used by the CODM at the operating segment level. Operating earnings (loss) of each segment represents net revenues less directly identifiable expenses to arrive at operating income (loss) for the segment. General corporate activities included in the table below are comprised of general management and administrative corporate expenses, amortization and impairment of intangibles assets and other operating income and expenses, net of certain general corporate activity costs that are allocated to the DIS and DS businesses. The accounting policies of the segments are the same as those of the Company as set forth in Note 2 to the consolidated financial statements contained in the Company’s 2018 Annual Report on Form 10-K and Note 2 to the interim unaudited consolidated financial statements.
| Three Months Ended March 31,
| 2019 |  | 2018
Net revenues: |  |  |  |  |
DIS business | $ | 1,812 |  |  | $ | 1,803 |
All other operating segments | 79 |  |  | 81 |
Total net revenues | $ | 1,891 |  |  | $ | 1,884 |
Operating earnings (loss): |  |  |  |  |
DIS business | $ | 280 |  |  | $ | 308 |
All other operating segments | 9 |  |  | 11 |
General corporate activities | (41 | ) |  | (47 | )
Total operating income | 248 |  |  | 272 |
Non-operating expenses, net | (35 | ) |  | (43 | )
Income before income taxes and equity in earnings of equity method investees | 213 |  |  | 229 |
Income tax expense | (50 | ) |  | (52 | )
Equity in earnings of equity method investees, net of taxes | 13 |  |  | 12 |
Net income | 176 |  |  | 189 |
Less: Net income attributable to noncontrolling interests | 12 |  |  | 12 |
Net income attributable to Quest Diagnostics | $ | 164 |  |  | $ | 177 |

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -URI http://asc.fasb.org/topic&trid=2134510 + Details
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